Daewoo DTM-29U7Z SERIES Manual de usuario

Service Manual

Colour Television 68 Cm / 66 Cm WIDE STEREO

CHASSIS :CP-820F

July. 2003

MODEL :

S/M No: TCP820FBF0

Specifications

DTM-29U7Z**

DTM-29U8Z**

DTM-2881Z **

DTM-

28W8Z

SAMSUNG

29" FLAT : A68QCP893X925 28" FLAT : W66QDE993X912

LGPD

29" FLAT : A68ERF012X044 28" FLAT : W66ERF022X044

Antenna Impdeance

SYSTEM

Main Voltage

12W 8ohm x 2 EA

Power Consumption

Sound Output

Speaker

OSD Language

English, German, French, Italian, Spanish, Dutch, Swedish, Finnish,

Danish, Norwegian, Polish, Czech, Romanian, Hungarian

Tuning System

Tuner

Number of Program

Aux. Terminal

TOP(5 Page memory) & FLOF(7 Page memory)

- West option : English, German/Dutch/Flemish, French, Italian, Spanish/Portuguese, Swedish/Finnish/Danish,

Hungarian, Rumanian, Turkish

Remote Controller

Teletext

21 pin EURO-SCART jack (AV input, TV output, RGB input)

21 pin EURO-SCART jack (AV input, S-VHS input)

RCA type AV input jack

S-VHS jack

Headphone jack

R-22D06 with 2 "AAA" type batteries

75 ohm unbalanced input (Din Standard)

Frequency Synthesize(FS) Tuning System

UV1316/A(Philips), DT5-BF18D(Partsnics), TECC2949PG35W(S/S), EL2782-105-B(Siel)

100 programs

Stand-by mode : 3.0Watts

Normal operating mode : 110 Watts

10 + 10 Watts, 10% THD at RF 60% mod. (1kHz)

CRT

PAL/SECAM-B/G,D/K,PAL-I/I',SECAM-L/L' NTSC-3.58/4.43 (Play back)

230V AC, 50Hz

CP-820F

http ://svc.dwe.co.kr

Caution

: In this Manual, some parts can be changed for improving. their

performance without notice in the parts list. So, if you need the

latest parts information, please refer to PPL(Parts Price List)in

Service Information Center(http://svc.dwe.co.kr)

DAEWOO ELECTRONICS Corp.

TABLE OF CONTENTS

SAFETY INSTRUCTION .................................................................................................................. 2

SPECIFICATIONS ............................................................................................................................ 3

CIRCUIT BLOCK DIAGRAM ........................................................................................................... 4

ALIGNMENT INSTRUCTION ........................................................................................................... 5

SCHEMATIC DIAGRAM .................................................................................................................. 12

EXPLODED VIEW ............................................................................................................................ 14

PRINTED CIRCUIT BOARD ............................................................................................................ 18

SERVICE PARTS LIST .................................................................................................................... 21

APPENDIX (" Appendix is provided only by internet [http://svc.dwe.co.kr] ")

IC DESCRIPTION ............................................................................................................................. 1

IC DC VOLTAGE CHARTS .............................................................................................................. 18

SAFETY INSTRUCTION

WARNING

: Only competent service personnel may carry out work involving the testing or repair of this equipment

1. Excessive high voltage can prodece potentially haz-

ardous X-RAY RADIATION. To avoid such hazards,

the high voltage must not exceed the specified limit.

The nominal value of the high voltage of this receiver is

29-31kv at max beam current. The high voltage must

not, under any circumstances, exceed 35kv. (33kv :

SAMSUNG CRT)

Each time a receiver require servicing, the high volt-

age should be checked. It is imprortant to use an accu-

rate and reliable high voltage meter.

2. The only source of X-RAY Radiation in this TV receiver

is the picture tube. For continued X-RAY RADIATION

protection, the replacement tube must be exactly the

same type tube as specified in the parts list.

X-RAY RADIATION PRECAUTION

1. Potentials of high voltage are present when this

receiver is operating. Operation of the receiver outside

the cabinet or with the back board removed involves a

shock hazard from the receiver.

1) Servicing should not be attempted by anyone who is

not thoroughly familiar with the precautions neces-

sary when working on high-voltage equipment.

2) Dischange the high potential of the picture tube

before handling the tube. The picture tube is highly

evacuated and if broken, glass fragments will be

violently expelled.

2. If any Fuse in this TV receiver is blown, replace it with

the FUSE specified in the Replacement Parts List.

3. When replacing a high wattage resistor ( oxide metal

film resistor ) in circuit board, keep the resistor 10mm

away from circuit board.

4. Keep wires away from high voltage or high tempera-

ture components.

5. This receiver must operate under AC230 volts, 50Hz.

NEVER connect to DC supply or any other power or

frequency.

SAFETY PRECAUTION

Many electrical and mechanical parts in this have

special safety-related characteristics. These charac-

teristics are often passed unnoticed by a visual

inspection and the X-RAY RADIATION protection

afforded by them cannot necessarily be obtained by

using replacement components rated for higher volt-

age, wattage, etc. Replacement parts which have

these special safety characteristics are identified in

this manual and its supplements, electrical compo-

nents having such features are identified designated

symbol on the parts list.

Before replacing any of these components, read the

parts list in this manual carefully. The use of substitute

replacement parts which do not have the same safety

characterisitics as specifide in the parts list may create

X-RAY Radiation.

PRODUCT SAFETY NOTICE

PIN Signal Designation Matching Value

1Audio Out (linked with 3) 0.5Vrms, Imp < 1 k (RF 60% MOD)

2Audio In (linked with 6) 0.5Vrms, Imp < 10 k

3Audio Out (linked with 1) 0.5Vrms, Imp < 1 k (RF 60% MOD)

4Audio Earth

5Blue Earth

6Audio in (linked with 2) 0.5Vrms, Imp < 10 k (RF 60% MOD)

7Blue in 0.7Vpp 2dB, Imp 75

8Slow (Function) Switching TV : 0-2V, PERI : 9.5 - 12V, Imp > 10 k

9Green Earth

10 NC

11 Green In 0.7Vpp 2dB, Imp 75

12 NC

13 Red Earth

14 Rapid(Blanking) Switching Earth

15 Red In, C In 0.7Vpp 2dB, Imp 75

16 Rapid(Blanking) switching Logic 0 : 0 - 0.4V, Logic 1 : 1 - 3V, Imp 75

17 Video Earth

18 Rapid Blanking Earth

19 Video Out 1Vpp 2dB, Imp 75

20 Video In, Y In 1Vpp 2dB, Imp 75

21 Common Earth

SPECIFICATIONS

CIRCUIT BLOCK DIAGRAM

ALIGNMENT INSTRUCTIONS

User Remocon

1. R-22D06

TV................................TXTTV...................................TXT

VOLUME...............VOLUME

MENU.......................MENU

POWER.................POWER

DOWN ..................DOWN

(CURSOR LEFT)

PR UP..........................PAGE UP

(CURSOR UP)

VOLUME UP...........VOLUME UP

(CURSOR RIGHT)

PR DOWN..............PAGE DOWN

NORMAL .................... Not used

A V .............................. Not used

TXT ............................. Not used

Not used ...................... INDEX

Not used ...................... C

Zoom ..................Double Window

SOUND ....................... Not used

MODE

MUTE .......................... MUTE

(CURSOR DOWN)

Not used ....................... Size

Not used ....................... Y

EFFECT ....................... Not used

R-22D06

SLEEP...................Not used

Not used................CANCEL

Not used................... HOLD

RECALL...............SUBPAGE

STILL......................REVEAL

Not used ..........................R

Not used ..........................G

PR ......................... PAGE

NUMBER NUMBER

0-9 0-9

* How to Enter the “ Service Mode ” with user remocon.

1) Set the TV Pr 91

2) Sharpness “ MIN “ control.

3) Push the Red, Green, Menu buttons in regular sequency within 5 seconds after setting TV power off.

4) You can see the Menu of “ service mode “ on the screen.

5) The PR UP/DOWN buttons on the remote controller are used to move the selection bar up or down the Menus.

6) The VOL UP/DOWN buttons on the remote controller are used to adjust levels.

7) If you want to exit from “ Service Mode “ then power the TV off.

- You can see the SVC Menu by OSD in TV set.

ALIGNMENT INSTRUCTIONS

Tuner is

Flat Option

Svm SVG

Svm SVD

Svm SVDEL

Svm SVCOR

Bcl Thres

Bcl Tc

Bcl Gain

Nor1 Bright

Nor1 Cont

Nor1 Color

Nor1 Sharp

Nor1 Tint

Nor2 Bright

Nor2 Cont

Nor2 Color

Nor2 Sharp

Nor2 Tint

Dolby3411

Phi

020

001

013

012

430

250

511

038

058

038

032

038

032

Osd Contrast

Osd Bright

Text Gain

Tilt Option

Transparent

Vertical angle

Vertical bow

380

000

V. Slope

V. Center

V. Size

S. Curve

H. Center

H. Width

EW. Para

EW. Cor Top

EW. Cor Low

EW.Sym

R. Bias

G. Bias

B. Bias

R. Drive

G. Drive

B. Drive

G2 Adjust

Sub bright

Double TEXT

Wide Option

-002

887

091

035

-325

088

-068

015

-013

330

370

000

514

SVC v1

CP-820

ALIGNMENT INSTRUCTIONS

Alignment Instructions for

CP-820F

Chassis

1PAGE

CHASSIS

MODEL DTM-28W8ZLF DTM-28W8ZLS DTM-29U8ZLF DTM-29U8ZLS

V. Slope -010 -020 -010 -020

V. Center 886 880 855 790

V.Size 040 080 050 088

S.Curve 020 030 020 030

H.Center -331 -330 -336 -330

H.Width 071 055 035 030

EW.Para -075 -060 -107 -088

EW.Cor Top 011 011 013 016

EW.Cor Low 017 018 010 025

EW. Sym -030 -020 -030 -025

R Bias 330 350 330 330

G Bias 330 350 330 330

B Bias 330 350 330 330

R Drive 370 400 370 370

G Drive 370 400 370 370

B Drive 370 400 370 370

G2 Adjust 000 000 000 000

Sub Bright 015 015 015 015

Double TEXT 000 000 000 000

Wide Option

YES

2PAGE

Tuner Is DWE DWE DWE DWE

Flat Option YES YES YES YES

Svm SVG 010 010 010 010

Svm SVD 002 002 002 002

Svm SVDEL 010 007 010 007

Svm SVCOR 008 007 008 007

Bcl Thres 530 550 530 550

Bcl Tc 250 250 250 250

Bcl Gain 511 511 511 511

Nor1 Bright 038 045 038 038

Nor1 Cont 058 058 058 058

Nor1 Color 040 040 040 040

Nor1 Sharp 032 032 032 032

Nor1 Tint 032 032 032 032

Nor2 Bright 042 042 042 042

Nor2 Cont 038 038 038 038

Nor2 Color 038 038 038 038

Nor2 Sharp 028 028 028 028

Nor2 Tint 032 032 032 032

Dolby 3411

YES

3PAGE

Osd Contrast 380 380 380 380

Osd Bright 000 000 000 000

Text Gain NO NO NO NO

Tilt Option NO NO NO NO

Transparent NO NO NO NO

Ver. Angle 000 -772 000 -772

Ver. Bow

000

-772

000

-772

CP-820F

AFT

Standard B/G, D/K, Iand L

1) Set a Signal Generator with

- RF FREQUENCY = 38.9 MHz,

- RF OUTPUT LEVEL = 80 5dBuV

- Pattern = Color Bar

- System = PAL-B/G

2) Connect the Signal Generator RF Output to TP2 (Tuner IF Output).

There must be no signal input to the tuner.

3) Set the L103 to TP1(I101, #22) with DC Voltage to 2.5V 0.1V

AGC

1) Set a Pattern Generator with RF LEVEL 63dBuV(Philips, Siel, S/S) / 70dBuV(Partsnic)",

RF Frequency 487.25MHz(23CH), Pattern Color Bar.

ALIGNMENT INSTRUCTIONS

2) Connect a OSCILLOSCOPE PROBE to P101 (TUNER AGC INPUT).

3) Set the RBO2 to P101(Tuner AGC Input) with DC Voltage to 3.0V 0.1V

SCREEN (G2)

1) Set a Pattern Generator with - RF Frequency : 210.25MHz (10CH)

- Pattern : RETMA

2) Select the “G2” in Menu

3) And a Horizontal Line will appear on the screen.

4) Adjust the SCREEN VOLUME on FBT barely to see the Horizontal Line.

5) Press the PR UP/DOWN keys to finish the SCREEN adjustment.

FOCUS

1) Apply a RETMA PATTERN signal.

2) Adjust the FOCUS VOLUME on FBT to obtain optimal resolution.

GEOMETRY

1. VERTICAL SLOPE ( Fixed : Adjust if need be )

1) Apply a RETMA PATTERN Signal.

2) Set the TV to Normal I mode.

3) Adjust the higher semicircle and the lower semicircle to be the same, with the V.Slope

by volume Up/Down keys.

2. VERTICAL CENTER

1) Apply a RETMA PATTERN Signal.

2) Set the TV to Normal I mode.

3) Adjust the center of the picture with the V.Center by volume Up/Down keys.

3. VERTICAL SIZE

* The VERTICAL CENTER adjustment has to be done in advance.

1) Apply a RETMA PATTERN Signal.

2) Set the TV to Normal I mode.

3) Adjust the VERTICAL SIZE of the picture with the select V.size by

volume UP/DOWN keys.

4. VERTICAL S-CORRECTION ( Fixed : Adjust if need be )

1) Apply a CROSSHATCH PATTERN Signal.

2) Adjust the S-CORRECTION to obtain the same distance between

horizontal lines with the S.Curve by volume UP/DOWN keys.

5. HORIZONTAL CENTER

1) Apply a RETMA PATTERN Signal.

2) Adjust picture centering with the select H.Center by volume UP/DOWN keys.

1. WIDTH

1) Apply a RETMA PATTERN Signal.

2) Adjust the horizontal width to make a perfect circle with the select H.Width

by volume UP/DOWN keys.

2. PARA

1) Apply a CROSSHATCH PATTERN Signal.

2) Adjust the vertical line to straight with the select E.W Para by volume

UP/DOWN keys.

3. CORNER ( Fixed : Adjust if need be )

1) Apply a CROSSHATCH PATTERN Signal.

2) Adjust the vertical line to straight with the select EW.Cor T by volume

UP/DOWN keys.

4. SYMMETRY ( Fixed : Adjust if need be )

1) Apply a CROSSHATCH PATTERN Signal.

2) Adjust the symmetrical balance to be suitable with the select EW Sym by

volume UP/DOWN keys.

ALIGNMENT INSTRUCTIONS

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